Related Clues:
- They float in the atmosphere
- High enough for here to be lots of them, by the sound of it, inside
- Lots of, by the sound of it at last, in the sky
- See how noisy it is in the sky
- See what a great noise the vapour makes
- Sounds as if it's missed, but not for 13 across
- See how noisy it is way up there
- How noisy they seem in here in the sky
- Shower source
- Kind of computing using remote servers
- Cumulus and stratus
- Covering of 100 decibels?
- C-cacophonous cautionary condition
- They make us cold and wet
- Mass of airborne water vapour